(October 18, 2016 at 2:37 pm)Arkilogue Wrote:(October 18, 2016 at 1:22 pm)Jörmungandr Wrote: Yes, this world. There are no perfect circles in this world so pi is an idealization created by minds. It doesn't exist anywhere but in mind.
A perfect circle can be physically made. And nature makes perfect spheres all the time as bubbles.
No it can't. A perfect circle consists of a line composed of an infinite set of dimensionless points. There is no such thing in the real world. Do you realize how big soap molecules are? It approximates a sphere, nothing more. You are constructing the sphere by imagining that the molecules in a particular layer are connected, forming the sphere. They aren't. They are just molecules arranged on a circular pattern. That you can't understand how there are no actual circles or spheres in the world does not bode well for the credibility of your 'theories'.
Is this a circle and a square?
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